Internal-combustion rotary engine.



` suitable manner to a tubular piston rod 7. These tubular piston rods operate in bear- `and State of California, have inventediiew y'and useful Improvements in Internal-Coins 'are for illustrative purposes only and ai'e notl "turned to any particular scale. These draw Aings form a UNITED sTATEs .PATENT oFFioE.

`WILLIAM BARNES, 0F SAN FRANCISCO, CALIFORNIA.

INTERNALColaBUsTIoN RQTARY ENGINE.

To all' 'wh-0m it muy concern: j Be it known that I, WILLiAiu BARNES, a citizen ofthe United States, residing at San Francisco, in 'the county oft San Francisco bust-ion Rotary Engines, of which the vfol-` lowing is a specification.

My invention relates to internalcoinbustion rotaryengines, and its principal objects are to produce an engine of the class de'- scribed which will be compact in form; light in weight; of'high power, and which in its operation Will give a minimum of vibration. An embodiment. of iny invention is illus-4 trated bythe aceon'ipanying drawings, which part of this specification, and in which drawings* Figure 1 is a front elevation artly in section, and Fig. 2 is a sectional sideelevation.

Referring more particularly tio the drawings the numeral 1 represents an annular frame rotatably mounted on the stationary shafts 2 and 3. -Mounted on the fra-me 1 isa plurality of cylinders t, preferably equally spaced apart, and provided to'have an oscillatory movement by means of suitable plv otal bearings at 5. -Operatable iii each cylinder is a suitable piston 6 secured in any ings 8 on the inner heads of each of the cylinders, and the inner ends of these piston rods are journaled to the crank-pin 9 on the crank 'l1 in ay manner' as 'will hereinafter be more fully described. v This crank 11 l have shown rigidly secured to theshaft. 2.

I have shown the cylinders mounted in staggered 'relation to cach other so that th'e piston rod of each may be mounted to have a direct thrust on the crank-pin 9.

The shaft il l have shown tubular in construction, and it serves as lan inlet. for the explosivelluid from any Isuit-able -source of supply. Connected with this tubular shaft: 3 is the pipe il of such form as to convey the explosive "fluid to a point in line with the axis of the'crank-pin 9. Connected on this pipe 12 is the `hood 13.- I have shown this Specification of Letters Patent. l .Patented Feb, 27, 1912, Application mea June 1.5, 1909. serial no. 502,349.

4connection means of the slip-joint 10.

This hood 13 is secured in any suitable inanner to the casing of a chamber 'at the end'of the piston rodmounted on the outer end of Y the crank-pin 9.

I showa preferred forml of construction j of the mounting of the piston rods-7 on the eranlbpin 9. The, journals of these piston rods adjoin each other, as shown in Fig. 2, and. each journal is constructed with a bearing ring 14, `which bears on the crank-pin 9. This bearing ring 14 is surrounded by the ring 15 and these two rings form the inner and outer Walls of a chamber. t The rings 14 and 15- are joined by bridges 16 so that the two rings and the bridges form arigid struoture. The tubular piston rod 7 is secured to the outer ring and an opening; is provided connect-ing the .chamber lbetween the two rings and the tubular piston rod. Y

It will bc seen lthat with the piston" rod journals mounted adjacent each other on the crank-pin 9 the chamber of one Vof the mountings will register with the chamber of Y the adjoining one and form one continuous chamber. 17 with which t'lie tubular piston rods of each of the cylinders connect.

I provide that the chamberin the piston iod journal at the innermost end of the crank-pin 9 be closed at its one side, as shown in Fig. 2, so as to close one end of the chamber' 17.

By this construction it will be seen that explosive lluid can be caused to fiow from the pipe. 12 intoihe hood 13; from the hood 13 'into the chamber 17, and from the chamber 17 into each of the tubular pistonrods 7.

As the cylinders and their operative mechanism are alike in construction and in oper ation a dcscrij'ition of one of them will sutlice.

The chamber on the piston rod Yjournal at the. outermost end ofthe crankpin 4is provided to open into the hood 1.385 I l endofA the cylinder.

the stroke of the piston in the innermost the wallof the cylinder, and preferablylat. f

a point .diametrically opposite the' port 19',

v 'the exhaustport 18. This port 18 is open only -when the piston is at the innermostart of its' stroke and' closed by the 'piston uring all'the otherl'parts ofthe vstroke of the piston; Y

As the'cylinder moves inwardly on thepistofthe port 21 will be openedintothe cylinder and a iiow of explosive fluid will take yplace from the tubular piston rod into the cylinder between vthe piston and the cylinders inward head. Then asthe cylinder returns and moves outwardly on the piston rod the port 21 'xwill be closed land the explosive fluid that'was, admitted into the inner end of the cylinder will be forced through the inlet ports 19 and 2O into ythe outer end of the cylinder between'the piston and 'theoutward cylindervhead.

On the piston 6 I place the baffle plate 22 of any convenient form and adapted to deexhaust port.

4moves inwardly this explosive Huid admitted into the outer end of the cylinder iict' the flow of t-he explosive fluid as it enters from the inlet port toward the outer end of the cylinder and away from the open When the cylinder again through the port 19 will be compressedy and ready for ignition when the end of the stroke is reached. Whenthe "combustion takes place the outer end of the cylinder will be driven away from the piston, and it in moving will impart motion to the annular frame to which it is attached. When the cylinder reaches a desired .point in its tion gases.. At the same time the port 19Y will be opened admitting a fresh charge of explosive fluid.

As a meansjof igniting the explosive fluid when desired I provide any one of theusual devices, common in such use and generally known as a spark plug 23, one point of which isctmnected.A inany suitable manner to the onet'side of any source of electrical supply through the medium of the cylinder casing, the rotary membenl and the shaft 2. The other point of the spark plug I connect by the wire 24y to the plate 25 at-any suitable point on the rotary member Pfand insulated therefrom. Conveniently mounted adjacent'the rotary member 1 is the trigger 26, which is conveniently connected .with 'the second sidegjgf the-source ot electrical energy, as by ineansfthe conductor4 27. As the member 1 revolves, and the plate 25 `;n 1akes contact-Wittigitlrqgtrigger 2G, circuit will be completed from the source of 'elec- .tricalsupply through the spark plug 223A and by the operation of` the spark plug the compressed explosive fluid will be ignited.

Itwill be seen that by 'providing for the mounting of the trigger in any suitable mannerso that it may moved to points so as to cause combustion .of the explosive fluid in the cylinder'when ythe' cylinder is on eitherjone or theothe Tefofithe" center line of the crank: 11, prtjii'irtiatelyat the points A or B asehwaanfing@I1,

rectin as desired. 'y'

It the trigger should be so placed to complete the circuit from the source of electrical supply and cause the combustion* of the explosive fluid when tlie cylinder is at .the point approximately at A the cylinder will be forced away from thepiston'to the left ofthe center'fofftliec'r'anl,fas s'l'iown-'in the drawing, andfthe?Uniem'lfc'rflv I caused to rotate infthedirection as indicated' .by the arrow. .Shouldthe'itriggr loeA so placed as to cause Athe combustion of the explosive fluid when. the cylinderis approximately atthe point B the cylinder will' be forced away from the piston to the right of the center of the crank, as shown in the drawing, and the member 1 will be caused to rotatey inl the direction opposite to that indicated by the arrowazmr; f'

I'do not'limit mysel'rtb tlie'preciseconfstruction and arrangement? tot lparts' -rherein described and shownfiin the drawingsyas' I engine mav' be ma'def 't' *rotate ing either fdidesire to avail-myself of such "modification and equivalents as-fall prop erly withinv the spirit of my invention.

Having thus'described my invention, what I'claim as new and desire to 'secure Letters Patent is:

1. InV a 'valvelessrotaryexplosive engine, a. frame rotatably m'ountediomfixed fshaiits, a. plurality of cylinders-:mounted thereon with oscillatory `movements, -eachg of said cylin'ders provided with a piston, a stationary crank, a tubular piston. rod connected to each of said pistons and revolu'bly mounted on said stationary crank, means, common SO ZlS.

to all the piston rods .tor admittingexplosive a frame"'tatablrmeente@ @titled-Shafts a 'pluralit lfjfylinders v'mounted thereon With..9scillatory movements, each of said cylinders provided with a piston, a stationary crank, a tubular piston rod connected to each of said pistons and revolubly mounted on said stationary crank, each piston rod having anv inlet passage for explosive i'luid,

ports Vin said'ro( s for the passage of explosive fluid from said tubular piston rods to said` cylinders, and said ports being controlled by the movements dit' said cylinders, suliistantially as described.

3. In a valveless rotary explosive engine,

a frame rotatably mounted on tixed shafts, a plurality ofcylinders mounted thereon with oscillatory moveii'ients, each of said cylinders provided With a piston, a stationfary crank, a tubular piston rod connected to each of said pistons and revolubly n'iounti eden said stationary crank, each piston rod having au inlet iassage for explosive fluid,

-ports `in said ro s for the passage of explosive lluidlroni said tubular piston rods to said cylinders, said ports beine'` controlled by tl'iemovements of said cylinders, exhaust ports in thekcylinders, and said exhaust ports being controlled by the relative move` ments ot'said cylinders and pistons, substantially as described.v

4. In a valveless rotary explosive engine, a Vframe rotatably mounted on fixed shafts, a plurality of cylinders mounted thereon with oscillatory movements, each of said cylinders provided with a piston, a stationary crank, 4a tubular piston rod connected to cach of said pistons `and revolublyJournaled on said crank, chambers provided in said journals, openings from ysaid lchambers to said tubular piston rods, means for admitting explosive fluid to said chambers, and means controlled byl the movement of the cylinders for admittin the luid from the tubular rods to the cy inders,`si1bstan tially as described.

5. yIn a valveless rotary explosive engiiie, a frame, tixedshaits rotatably supporting the same, a crank eonnectedwith the shafts, al cylinder mounted `on said 'fi'aniewith oscillatory movement, a piston in said cylinder, avtubular piston rod'connected lto said piston and, -to lthe crank, a sleeve on said cylinder slidableon said tubular piston rod,

i a port liii said tubular piston rod, said port opening `into said cylinder when said cylend, a piston in said cylinder, a tubular piston rod jourualed to the crank and passing through the sleeve, means for delivering motive fluid to .said tubular rod, said rod havingl an outlet port for delivering the fluid to the cylinder when said cylinder is at the inner end of its movement, said sleeve covering the-port in other positions of the cylinder, said cylinder having acliannel with its one port. opening into said cylinder between a head of said cylinder and said piston and with its other port opening into said` cylinder on the outward side of said piston when said cylinder is at the outer end of its movement, an exhaust port iii said (.iylin'dcr, and said exhaust port controlled by the relative movement ofsaid cylinder and piston, substantially as described. y

.7. ln af valveless rotary explosive engine, a frame rotatably mounted on fixed shafts,` a plurality of 'eylinders mounted thereon with oscillatory movements, cach of said cylinders provided with a piston, a stationary crank, a tubular piston rod connected to each of said pistons and revolubly mounted on said .stationary cranli, an inlet. passage .in each of said piston rods 'loi' explosive fluid, ports for the` passage of exl'ilosive fluid from said tubular .piston rods to said cylinders, exhaust ports in said c y'fliiulers,

said ports for the passage of explosive fluid from said' tubular piston rods and said exhaust `ports being controlled by the relative movement of lsaid'cylinders and pistons, substantially as described.

8. VIn a valveless rotary explosive-cngine, a frame rotatably mounted on fixed shafts, a cylinder mounted thereon with an oscillatory movement, said cylinder provided with va piston, a stationary crank, a tubular piston rod connected to said. piston and i'cvolubly mounted on raid stationary cranlenieans for admitting explosive tluid to said tubuu` .lar piston rod, means controlled by the movement. of the cylinder for admitting ex plosive fluid from said tubular piston rod to said cylnider, means for igniting said eX- plosive fluid in .said cylinder, and an exhaust 'portcont-rolled by the relative movement of said piston and cylinder for freeing said cylinder of the gasesiof combustion, substantially as described.

9, hIn a valveless rotary .explosive engine,I

a frame'rotatahly mounted on .fixed shafts,

apliirality ofcylinders mounted thereon with oscillatory movements, each of said cylinders provided with a piston, a station ryvlcrank, a tubular piston rod connected to eacliof said pistons and revolubl y mount-.

ed on said stationary crank, means for adinittin explosive fluid to said tubular pistonror s, means controlled by the xnovement of the cylinders for admitting explosive Huid from said4 tubular piston rods to said cylinders, means for gnting said explosive fluid in said cylinders, and an exhaust poi-t in each of said cyli'l'xders controlled by, the relat've movement of Saidpston and cylinder for freeing Sdeylnder of the gases of combustion, substuntallyas described. y`

In testimony whereof I have axed 'my signature in the presence of two Witnesses this 3rd day of June 1909. i VILLIAM BARNES.

Vtnesses:

FRANK L. OWEN, A. DIXON. 

